Priority Control Method and Data Processing System

1. A priority control method for controlling a priority by a server, the server comprising a processor and a memory and being configured to distribute data issued by a data source to a terminal, the priority control method comprising: a first step of transmitting to the server, by the terminal, a default priority and data to be subscribed; a second step of receiving, by the server, the data to be subscribed by the terminal and the default priority of the data, and setting the terminal and the default priority in priority management information in association with each other; a third step of setting, by the server, the data issued by the data source and the terminal subscribing the data in subscriber management information in association with each other; a fourth step of transmitting, by the data source, an importance level of the issued data; a fifth step of setting, by the server, the importance level received from the data source in the priority management information in association with the default priority for the terminal subscribing the data; and a sixth step of referring, by the server, to the priority management information to calculate a final priority from the default priority for the terminal and the importance level.

2. The priority control method according to claim 1 , further comprising: a seventh step of issuing the data by the data source; and an eighth step of receiving, by the server, the issued data, and controlling data distribution of the data based on the final priority for the terminal subscribing the data.

3. The priority control method according to claim 1 , further comprising executing, by the server, a task of receiving the subscribed data in place of the terminal and distributing to the terminal a processing result obtained by executing predetermined processing on the data, wherein the second step comprises receiving, by the terminal, the default priority of the subscribed data, and setting the task that is to distribute the processing result to the terminal and the default priority in the priority management information in association with each other, wherein the third step comprises setting the data issued by the data source and the task that is to distribute the processing result to the terminal in the subscriber management information in association with each other, and wherein the fifth step comprises setting the importance level received from the data source in the priority management information in association with the default priority for the task subscribing the data.

4. The priority control method according to claim 2 , further comprising executing, by the server, a task of receiving the subscribed data in place of the terminal and distributing to the terminal a processing result obtained by executing predetermined processing on the data, and, wherein the second step comprises receiving, by the terminal, the default priority of the subscribed data, and setting the task that is to distribute the processing result to the terminal and the default priority in the priority management information in association with each other, wherein the third step comprises setting the data issued by the data source and the task that is to distribute the processing result to the terminal in the subscriber management information in association with each other, wherein the fifth step comprises setting the importance level received from the data source in the priority management information in association with the default priority for the task subscribing the data, and wherein the eighth step comprises receiving the data issued by the data source, and controlling a computer resource to be allocated to the task based on the final priority for the task subscribing the data.

5. The priority control method according to claim 3 , wherein the server comprises: a publish-subscribe message hub configured to receive the data issued by the data source, and distribute the data to the terminal; and a data processing server configured to transmit, to the terminal, a processing result obtained by processing the data distributed from the publish-subscribe message hub by the task.

6. A data processing system, which is configured to allow a server to control a priority, the data processing system comprising: a terminal located on a subscription side; a data source located on a publishing side; and the server, which comprises a processor and a memory, and is configured to distribute data issued by the data source to the terminal, wherein the terminal is configured to transmit to the server a default priority and data to be subscribed, wherein the server receives the data to be subscribed by the terminal and the default priority of the data; receives an importance level of the data issued by the data source; and sets the importance level, the terminal subscribing the data, and the default priority in priority management information in association with one another; and sets the data issued by the data source and the terminal subscribing the data in subscriber management information in association with each other, and refers to the priority management information to calculate a final priority from the default priority for the terminal and the importance level.

7. The data processing system according to claim 6 , wherein the data source is configured to issue the data, and wherein the server receives the data issued by the data source, and control data distribution of the data based on the final priority for the terminal subscribing the data.

8. The data processing system according to claim 6 , wherein the server is configured to execute a task of receiving the subscribed data in place of the terminal and distributing to the terminal a processing result obtained by executing predetermined processing on the data, and wherein the server sets the default priority received from the terminal and the task that is to distribute the processing result to the terminal in the priority management information in association with each other; and sets the importance level received from the data source in the priority management information as the priority for the task subscribing the data in association with the default priority.

9. The data processing system according to claim 7 , wherein the server is configured to execute a task of receiving the subscribed data in place of the terminal and distributing to the terminal a processing result obtained by executing predetermined processing on the data, wherein the server sets the default priority received from the terminal and the task that is to distribute the processing result to the terminal in the priority management information in association with each other; and sets the importance level received from the data source in the priority management information as the priority for the task subscribing the data in association with the default priority, and controls a computer resource to be allocated to the task based on the final priority for the task subscribing the data.

10. The data processing system according to claim 8 , wherein the server comprises: a publish-subscribe message hub configured to receive the data issued by the data source, and distribute the data to a distribution destination; and a data processing server configured to transmit, to the terminal, a processing result obtained by processing the data distributed from the publish-subscribe message hub by the task, wherein the publish-subscribe message hub comprises the message hub module, and wherein the data processing server comprises the priority management module.